UINT aLen=WideCharToMultiByte(CP_ACP,0,strCS,wLen,NULL,0,NULL,NULL); LPSTR lpa=newchar[aLen]; WideCharToMultiByte(CP_ACP,0,strCS,wLen,lpa,aLen,NULL,NULL); returnlpa; } std::stringWideChar2StdStr(constCString&strcs) { LPSTR l=WideChar2MBCS(strcs); std::stringstdStr(l); delete [] ...
The string may be changed in all sorts of nasty ways, and your original std::string will be oblivious to all of them. Try this instead: // myFunction takes an LPSTR std::string cppString = "something"; LPSTR cString = strdup( cppString.c_str() ); try { myFunction( cString ); cp...
CString、LPSTR、std::string、LPCSTR之间的转换 LPSTR WideChar2MBCS(constCString& strCS ) { constUINT wLen = strCS.GetLength() + 1; UINT aLen = WideCharToMultiByte(CP_ACP,0,strCS,wLen,NULL,0,NULL,NULL); LPSTR lpa =newchar[aLen]; WideCharToMultiByte(CP_ACP,0,strCS,wLen,lpa,aLen,NULL,NUL...
其实这是windows下的命名方式,你把它的名字拆开了看就很清晰:LP:长指针,C:const,T:自适应,STR:字符串。类似的还有LPCSTR、LPSTR、LPTSTR、LPWSTR等等,你按照上面的方法拆开看就很清楚。2. std::string。这是C++标准库中的字符串类。是C++语言标准的一部分。提供对字符串的封装。用起来还算比...
<codecvt>// convert string to wstringinline std::wstring to_wide_string(const std::string& ...
str.c_str()提供了一个const char *,这是一个LPCSTR(指向常量string的长指针) --这意味着它是指向...
string返回值的默认编组行为为UnmanagedType.LPStr,因此C++函数需要返回指向null-terminatedchar*字符串的指针。该字符串的内存必须用CoTaskMemAlloc()分配,因为封送拆收器将在将char数据转换为string后获得内存的所有权并用CoTaskMemFree()释放它。 此外,C++函数没有定义调用约定,因此它将使用编译器的默认值(通常为__cdecl...
{ std::string::size_type lstringlength = strBreakString.length(); ATL::CStringA CStringAobj = ""; LPSTR lpCStringAobj = CStringAobj.GetBuffer( (int)lstringlength ); memcpy( (void*) lpCStringAobj, strBreakString.c_str(), lstringlength ); CStringAobj.ReleaseBuffer((int)lstringlength...
'CString' to 'std::string': std::string cannot always construct from a LPCTSTR i.e. the code will fail for UNICODE builds. So the following conversion will lead to error: CString cs("Hello"); std::string s((LPCTSTR)cs); As std::string can construct only from LPSTR / LPCSTR, a pr...
AFX_MANAGE_STATE(AfxGetStaticModuleState());//TODO: 在此添加调度处理程序代码std::string_content =LPSTR(content); std::string_code =LPSTR(code);returnVARIANT_TRUE; } 修改为红字部分 , 然后代码也不报错了 参考: https://www.cnblogs.com/gaohongchen01/p/4006700.html ...